Musical Fidelity M6xi Integrated Amplifier

A Powerhouse That Doesn't Act Like One

Musical Fidelity built the M6xi to deliver serious power. It does that without demanding a serious footprint. It does not demand a serious price tag either. Twin monoblock-style power amplifier stages push 220 watts per channel into 8 ohms. Into 4 ohms they push 320 watts.

There are 45 amps of peak-to-peak current on tap. That is there for the moments that call for it. A Darlington output configuration improves linearity. It also reduces crossover distortion. The design traces back to Musical Fidelity's flagship Titan platform. It is scaled into a chassis that fits a normal equipment rack.

What Musical Fidelity Didn't Cut Corners On

Volume runs through a Burr-Brown stepped attenuator. It was chosen for accurate channel tracking at every listening level. A fully analog power supply feeds the preamp. It feeds the power stages too.

The panels are extruded aluminum. They are milled rather than stamped. That gives the M6xi rigidity. It also gives it the shielding a design like this deserves. At just over 18 kilograms, it is substantial without being unwieldy. It comes finished in black or silver.

Your Turntable and Your TV Both Plug In

A built-in phono stage handles both moving-magnet and moving-coil cartridges. A turntable connects without an outboard phono preamp. Digital connectivity is thoroughly modern. HDMI with eARC brings a television's audio straight into the amplifier.

USB-C replaces the older USB-B standard. Coaxial and optical inputs round out the digital side. They decode up to 24-bit/192kHz. A rear USB-A output supplies 5V/2A. It can power an external streaming device directly from the amplifier.

Built for a Real Room

Four RCA inputs and one balanced XLR input cover a full analog system. A dedicated home theater bypass input keeps the M6xi in sync with a surround processor. That matters when it is part of a larger setup. An RS232 interface supports custom-installation control systems.

No Headphone Jack, and What to Use Instead

A variable RCA output supports bi-amping or a subwoofer. A second RCA output is fixed. It is intended for feeding an external headphone amplifier. That matters, because the M6xi itself doesn't include a front-panel headphone jack.

What Reviewers Are Saying

David Price is Global Editor-in-Chief of StereoNET. He reviewed the M6xi this year. He called it "a big integrated amplifier that hasn't been told how little it costs." He described it as a "powerhouse, with dynamics, authority and grip that should frighten many more expensive designs."

He found it made "well-recorded pop... highly enjoyable." He summed it up as "sheer all-round competence" that "scores very highly across the board." StereoNET awarded the M6xi a 9/10 rating. It also gave the amplifier its Applause Award.

Who Is This Integrated Amplifier Best For?

• You want serious power in a normal-sized chassis — 220 watts per channel with 45 amps of peak current on tap.
• You play vinyl on MM or MC cartridges — a built-in phono stage covers both without an outboard box.
• Your TV needs a proper amplifier — HDMI eARC connects a television with a single cable.
• You want modern digital connectivity — USB-C, coaxial, and optical inputs decode up to 24-bit/192kHz, so a laptop, a TV and a CD transport all connect without adding a DAC.
• If you want a front-panel headphone jack, the M6xi doesn't include one — its variable RCA output feeds one of our headphone amplifiers instead.

How Does It Connect to Your System?

Connect your speakers to the binding posts and your turntable to the phono input, set for your cartridge type. Four RCA sources and one balanced XLR source fill the analog inputs, your TV joins by HDMI eARC, and other digital sources use USB-C, coaxial, or optical. Your surround processor uses the home theater bypass input, and the variable output feeds a subwoofer or a second amplifier for bi-amping.

Everything else is handled from one stepped-attenuator volume knob.

Pairs Well With

Building around the M6xi? Here are some great companions:

• Turntable: Put the built-in MM/MC phono stage to work — see our Turntables.
• Speakers: 220 watts per channel drives a serious pair — see our Floorstanding Speakers.
• Cables: Quality XLR interconnects and speaker cable complete the system — see our Interconnect Cables.
• Audio Rack: A sturdy home for a genuine powerhouse — see our Audio Racks.

Frequently Asked Questions

How much power does it deliver?

220 watts per channel into 8 ohms, or 320 watts per channel into 4 ohms, with 45 amps of peak current.

Does it have a phono stage?

Yes, built in, supporting both moving-magnet and moving-coil cartridges.

Can I connect my TV directly?

Yes, an HDMI input with eARC brings television audio in over a single cable.

Does it have a headphone output?

A fixed RCA output is intended for an external headphone amplifier instead.

What digital inputs does it support?

USB-C, coaxial, and optical, decoding up to 24-bit/192kHz.

What finishes are available?

Black or silver.

See It in Action

Pursuit Perfect System puts the M6xi through its paces:

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Learn More

Want to learn more about integrated amplifiers, phono stages, or building a powerful two-channel system? Visit our Learning Center for guides, tips, and expert advice.